First impressions: the emoji trigger happiness of 4o is totally gone. Bolding still happens.
There appear to be 4 ways to run a query now: a) GPT5, b) GPT5 and toggle "extra thinking" on, c) "GPT5 with thinking", and d) "GPT5 with thinking" then click "quick answer" which aborts thinking (this mode is possibly identical with GPT5)
I don't find this much simpler than 4o, o3, etc. It's just reordering the hierarchies. Now the model name is no longer descriptive at all and one has to add which mode one ran it in.
There appear to be 4 ways to run a query now: a) GPT5, b) GPT5 and toggle "extra thinking" on, c) "GPT5 with thinking", and d) "GPT5 with thinking" then click "quick answer" which aborts thinking (this mode is possibly identical with GPT5)
I don't find this much simpler than 4o, o3, etc. It's just reordering the hierarchies. Now the model name is no longer descriptive at all and one has to add which mode one ran it in.